Hazmat/Tech Rescue Flashcards
(147 cards)
Hazmat
Company level incident response
Hazmat acronym
H
H- hazard ID
- liquid, gas, or solid. Vapors - colorless, odorless
- DOT placards and labels, nfpa 704, vessel design
- proper chemical protect of clothing will provide some barriers to toxic exposures
- hand-held gas monitors shall be used
Hazmat
A
- action plan
- brief description of problem
- actions (develop IAP, zoning, victim assessment, mitigation)
- immediate needs (hazmat team, law, other agencies)
- who’s in command
Before attempting a rescue, personnel should use the risk profile
Approach from uphill up wind, avoiding puddles, vapor clouds, or collected vapors
Hazmat
Z
Zoning
- 1st arriving unit should immediately initiate emergency zoning (traffic cones, barrier tape, law)
- 1st arriving should establish perimeter to minimize chemical containment. DOT ERG - Initial isolation zones
Hazmat
M
Managing the incident
- utilize ICS
Hazmat
A
Assistance
- requesting resources as needed
Hazmat
T
Termination
- address all regulatory issues and documentation
- PFA shall notify appropriate agencies, such as Larimer county environment health department t
PFA is not responsible for clean up
Hazmat
Establish control zones
- initial zoning is a critical action of 1st arriving
- 1st arriving shall use DOT ERG, detectors, best judgement in determining initial isolation zones
- zone is used to keep people away from dangerous concentrations , to prevent entry by the public, and unauthorized persons
Hazmat
Establish safety zones
Purpose:
- limit level of contamination
- provide area of safety for responders and customers
- allow to division of labor
Hazmat
Control zones
Size and shape determined by:
- chemical properties
- natural barriers
- quantity of product
- size and condition of container
- physical state of product
- weather
- recognized standards (DOT ERG, cameo, aloha)
Hot zone
- most affected. Threshold limit value (TLV) should be used to determine hot zone
- red fire line tape
- safe refuge area should be located near the entrance to the Decon cooridor
- shall be monitored to ensure customers and responders is not occurring
Hot zone
Guidelines
- toxicity - readings greater than TLV/TWA or PEL exposure values
- flammability - 10% of the lower explosive limit (in doors) and 20% outside
- oxygen - deficient < 19.5%, rich>23.5%
- radiological activity - any reading twice the background level, not to exceed 2mR/hr dose rate
Warm zone
- safe from contamination
- yellow fire tape
- all shall wear appropriate PPE
- includes Decon cooridor, safe area
- shall contain access control points for the hot zone
Cold zone
- outside warm zone, inside scene perimeter
- green fire tape
- command and control functions and Other support functions
- treatment of Deconned patients and responders, interagency coordination, and incident security
Spill & Leak control
- either contain the material or create a safety zone and deny entry (control)
Prior to beginning containment or confinement ops, the IC should consider:
- hazmat involved
- associated hazards
- risk to emergency responders and civilians
- training level and physical abilities of personnel
- special tools, equipment, supplies needed
- emergency Decon and appropriate emergency care
Spill & Leak control
- either contain the material or create a safety zone and deny entry (control)
Prior to beginning containment or confinement ops, the IC should consider:
- hazmat involved
- associated hazards
- risk to emergency responders and civilians
- training level and physical abilities of personnel
- special tools, equipment, supplies needed
- emergency Decon and appropriate emergency care
Confinement techniques
- actions (defensive) occur remotely from spill
- diversion, diking, retention
- these ops avoid direct exposure
- can often be performed without special equipment
- usually be performed by 1st responders with minimal supervision
- based on availability of time, personnel, equipment, and supplies
- a risk assessment must be conducted to review the potential harmful effects of the leak downhill and downwind
Natural gas line emergencies
IC should:
- make decision based on risk profile
- IC ensures: crews wear full PPE and SCBA, attack line(s) at least 1 3/4 inch, patent water supply or other extinguishing agents
- ask dispatch to notify gas company and ETA
- if gas line becomes gas fed fire, FFs should not extinguish until gas company has shut off gas
- if a life safety or property conservation issue exists, it may be necessary to control the fire
Natural gas line emergencies
Monitoring the air:
- use hazmat qrc sequence for help
- monitors help determine if there is immediate danger to life or health. Danger near the leak
- LEL sensor - audible alarm at 10% of LEL methane
- IC should evacuate all interior areas that are in alarm
- should search for and remove or extinguish possible ignition sources (in buildings and vehicles in the area including fire apparatus)
Natural gas line
Determine the IAP:
- based on situation, the IAP can be for emergency personnel (hazmat team) to use a clamp or for PFA to stand-by and await gas company
- IC may call engine 10/hazmat 10 to respond if gas company anticipates an extended response time
- if can do safely, PFA should determine the following to relay to the gas company: color and diameter of gas line, whether the line is completely or partially severed
Decontamination
Emergency Decon:
- purpose is to reduce exposure by removing contaminant
- Decon of ambulatory victims and 1st responders may be accomplished prior to set-up of tech Decon
- may also be used on victims who are outside the hot zone,incapable of self-rescue, and in need of immediate life-saving intervention
- SHALL wear appropriate PPE prior to making any physical contact with a patient
Emergency Decon
Procedures
- remove victim clothing, thoroughly rinse with soap
- dry Decon for radioactive and water reactive material
- dry Decon, protect Pts and rescuer’s respiratory system
- should rinse/wash in an area of safe refuge
- all members participating must be considered contaminated and shall complete Decon of themselves
- IC ensures that the receiving facility is notified that an emergency Decon patient is being transported. Should include suspected contaminant and methods used for Decon
Technical Decon
- prior to hazmat entry into hot zone, a contamination reduction cooridor and appropriate level Decon shall be established
- the purpose is to assure that any potentially harmful residues on persons/equipment are confined to hot zone
- when appropriate, IC or hazmat group sup may appoint a decontamination unit leader